It’s not worth the risk. You spent a lot of money on this.
Not wearing the bra for a night out could cause your implants to be painful and heal wrong, the bra is to make sure they heal in the right place. My surgeon told me to wear my post op bra for 6 weeks and to only take off for a shower. They tell you this for a reason, don’t risk your boobs for 1 night out. Wear a different outfit or don’t go out.