Here is a quote from the Kodak publication 'Storage and Care of KODAK Photographic Materials':
Once you have exposed your film, paper, or material, it is important
to minimize changes in the latent (unprocessed) image. For consistent
results, process the film, paper, or material promptly after exposure.
This is particularly important with professional color films, because
they are optimized for processing soon after exposure. Storage at a
low temperature after exposure will retard latent-image changes. You
can keep exposed, unprocessed film in a refrigerator for a few days
when necessary. Put the film in a sealed container, and allow the
unopened container to reach room temperature before removing the film
However, I believe that is written for really critical situations. My experience (e.g. travelling for 25 weeks with no attempt to cold-store my film) is that the latent image in film is safe for a long time, especially in your fridge. One stop push processing per month of storage (especially if stored in a fridge) is way overkill. People always overthink this, and speak about film like it has the shelf life of a dairy product or something. Don't stress about it. It's colour negative film - any (very) minor colour changes are not going to make any big difference. More than likely when you do get these films developed (without any push processing), you won't notice any difference whatsoever. I would just store the film in the fridge (in a ziplock bag to protect against moisture/condensation) and essentially forget about it until your lab opens again. Everything will be OK.