No. As you guessed, only a priest, deacon, or EMHC may take the Eucharist to the homebound. The homebound woman's husband is also correct that he should not administer Communion to his wife unless he is an EMHC himself. Rather than take the Eucharist herself, your friend should advise the couple to call their parish and ask for an EMHC to bring the woman Communion. She could also volunteer to make the call for them, or she could ask her parish for training as an EMHC. I recommend informing the pastor of this parish that he needs to instruct his EMHCs not to give extra consecrated hosts to just anyone in the Communion line who holds up a pyx to be filled. Only a duly-designated EMHC should be given Communion for the homebound.