Hi Chris,
If the scope is exposed to direct sun all day it is going to get pretty hot, and will take longer to cool down. (But make sure you cover the objective, and the finder scope!) I personally would be reluctant to leave any scope in full sun all day, but it shouldn't damage it if it is only for a couple of days. It should be fine for the week if you cover it against direct sunlight, dust etc.
The cheapest fix is a tarp held on by bungee cords or a bit of rope, but there are commercial fixes available (eg: see:
https://www.bintel.com.au/product-ca.../cases-covers/ - although these seem pretty expensive. Here is a US site with some good covers:
https://www.astronomics.com/full-cov...opes_c406.aspx
Search "
Desert Storm" dust covers for telescopes" to see what you can find or copy for a DIY.)
- and beware of wind: I have been to Astro Camps where scopes have been blown over...
All the best, and have a great week away! I'm jealous!!!
- Dean