There’s pressure from my PI for me to go to the lab to get equipment to work from home. Is it safe to quickly go there; is this allowed?

Answer: 

As reported on Yale’s research continuity website:

Under no circumstances should researchers take materials other than laptops, data storage devices, or notebooks offsite (e.g., to their homes). All critical research activity must continue within the confines of an appropriate laboratory space to ensure research continuity.

Based on the above guidance, do NOT take lab equipment, reagents, samples, or related materials home. Also, coming to campus is generally strongly discouraged. Some buildings are not accessible without the consent of and escort by Security. If you really need to go to your lab to gather notebooks and storage devices, you should check first with your faculty mentor, who in turn should check with the department chair and/or lead administrator.