It would be a bummer to have to change travel plans, but Germany, Austria, and Italy all require snow tires to be mounted if snowy or slushy conditions exist, which is quite likely in February.
You can be fined for hindering traffic if the summer tires force you to drive too slowly. Should an accident occur, there can be insurance implications as well. You may want to to check the ED insurance policy for any exclusions or talk to your insurer to know what your limits of coverage are.
2009 M3 E93 Silverstone II over Bamboo: 6MT, Tech, Premium, Cold, Premium Sound, Ipod, 19'' Wheels, OEM Exhaust Mod.